Total capacity
Approximately 70 l
of which reserve
fuel
Approximately 10 l
Vehicles with a petrol engine:
Depending on equipment, the total capacity of
the fuel tank may vary.
Model
Total capacity
121
Approximately
70 l
Model
of which
reserve fuel
121
Approximately
13 l
Diesel
Fuel grade
G
WARNING
If you mix diesel fuel with petrol, the flash
point of this fuel mixture is lower than that of
pure diesel fuel. When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is a risk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
!
Only refuel using commercially-available
automotive diesel fuel that conforms to the
European standard EN 590 (or equivalent
national fuel standards). Fuels such as alter-
native fuels (bio-diesel), marine diesel, heat-
ing oil etc. are not permitted.
Do not use fuel additives. There is otherwise a
risk of impaired engine performance or
engine and catalytic converter damage.
!
Vehicles with diesel particle filters: in
countries outside the EU, only use low sulphur
Euro diesel with a sulphur content of under
50 ppm. Otherwise, the emission control sys-
tem could be damaged.
!
Vehicles without a diesel particle filter:
in countries where only diesel fuel with a high
sulphur content is available, you will need to
carry out your vehicle's oil change at shorter
intervals. More information about the interval
for oil change can be obtained from any quali-
fied specialist workshop.
!
If you are using drums or canisters to refuel
the vehicle, you should filter the fuel before
adding it.
This will prevent malfunctions in the fuel sys-
tem due to contaminated fuel.
Information about current country-specific fuel
sulphur content is available:
R
from any Mercedes Benz Service Centre
R
on the Internet at
http://bevo.mercedes-benz.com under the
specifications on Sheet No. 136.2.
i
Usually you will find information about the
fuel grade on the filling pump. Otherwise, ask
the filling station attendant.
Diesel at very low outside temperatures
G
WARNING
If you heat fuel system components, e.g. with
a hot-air gun or naked flame, these compo-
nents could be damaged. This can cause fuel
to escape and ignite. Depending on the type
of damage, fuel may also not escape until the
engine is running. There is a risk of fire and
explosion.
Never heat fuel system components. Contact
a qualified specialist workshop to rectify the
malfunction.
At very low outside temperatures, paraffin may
separate from the diesel fuel resulting in inade-
quate flow characteristics.
Malfunctions resulting from paraffin separation
can only be rectified by heating the entire fuel
system. Park the vehicle in a heated garage, for
example.
To prevent operating problems, diesel with bet-
ter flow qualities is offered during the winter
months.
Winter diesel fuels in the Federal Republic of
Germany and other Central European countries
are reliable up to an outside temperature of
Ò
22 †. Winter diesel, which can be used without
difficulties at the temperatures normally
encountered, is available in most countries.
Service products and capacities
381
Technical data
Z
